void paddle_game_init(void)
{
al_hide_mouse_cursor(t3f_display);
/* place paddles */
paddle[0].x = 32.0;
paddle[0].y = 240.0 - 64.0 / 2.0;
paddle[0].object = t3f_create_collision_object(0, 0, 16, 64, 32, 32, 0);
t3f_move_collision_object_xy(paddle[0].object, paddle[0].x, paddle[0].y);
paddle[0].active = true;
paddle[1].x = 640.0 - 32.0 - 16.0;
paddle[1].y = 240.0 - 64.0 / 2.0;
paddle[1].object = t3f_create_collision_object(0, 0, 16, 64, 32, 32, 0);
t3f_move_collision_object_xy(paddle[1].object, paddle[1].x, paddle[1].y);
paddle[1].active = true;
/* place ball */
ball.object = t3f_create_collision_object(0, 0, 16, 16, 32, 32, 0);
paddle_init_ball(1.0);
/* reset scores */
score[0] = 0;
score[1] = 0;
t3f_srand(&rng_state, time(0));
paddle_state = EXAMPLE_STATE_GAME;
t3f_play_music("data/music/game.xm");
}
void paddle_init_ball(float dir)
{
float angle = t3f_drand(&rng_state) * ALLEGRO_PI;
ball.x = 320.0 - 16.0 / 2.0;
ball.y = 240.0 - 16.0 / 2.0;
t3f_move_collision_object_xy(ball.object, ball.x, ball.y);
ball.vx = cos(angle) * EXAMPLE_START_SPEED * dir;
ball.vy = sin(angle) * EXAMPLE_START_SPEED * dir;
if(ball.vx > 0.0 && dir < 0.0)
{
ball.vx = -ball.vx;
}
else if(ball.vx < 0.0 && dir > 0.0)
{
ball.vx = -ball.vx;
}
ball.active = true;
/* handle AI */
if(ball.vx > 0)
{
paddle[1].dy = paddle_ai_predict_y() - 32 + 8.0;
paddle[1].dvy = t3f_drand(&rng_state) * 6.0 - 3.0;
}
}
void powerup_logic(void)
{
int i;
for(i = 0; i < GAME_MAX_POWERUPS; i++)
{
if(powerup[i].active)
{
switch(powerup[i].type)
{
case POWERUP_TYPE_SPIRIT:
{
powerup[i].var--;
powerup[i].x += powerup[i].vx;
powerup[i].y += powerup[i].vy;
if(powerup[i].var <= 0)
{
powerup[i].active = false;
}
else
{
t3f_move_collision_object_xy(powerup[i].object, powerup[i].x, powerup[i].y);
if(player.active && t3f_check_object_collision(powerup[i].object, player.object))
{
al_play_sample(sample[SAMPLE_POWERUP], 1.0, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
score += 10 * multiplier;
multiplier_tick++;
if(multiplier_tick >= 10)
{
al_play_sample(sample[SAMPLE_MULTIPLIER], 1.0, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
multiplier++;
if(multiplier == 10)
{
al_play_sample(sample[SAMPLE_MAX_MULTIPLIER], 1.0, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
}
if(multiplier > 10)
{
multiplier = 10;
}
multiplier_tick = 0;
}
powerup[i].active = 0;
}
}
powerup[i].tick++;
break;
}
case POWERUP_TYPE_UPGRADE:
{
break;
}
}
}
}
}
/* logic routines, passed to T^3 Framework */
void paddle_logic(void * data)
{
/* logic switch, use different logic for each state */
switch(paddle_state)
{
case EXAMPLE_STATE_TITLE:
{
t3f_process_gui(paddle_menu, data);
break;
}
case EXAMPLE_STATE_GAME:
{
/* return to menu if Escape pressed */
if(t3f_key[ALLEGRO_KEY_ESCAPE])
{
paddle_game_exit();
}
/* store old paddle positions */
paddle[0].oy = paddle[0].y;
paddle[1].oy = paddle[1].y;
/* move paddle */
paddle[0].y = t3f_mouse_y - 32;
if(paddle[0].y < 0)
{
paddle[0].y = 0;
}
if(paddle[0].y > 480.0 - 64.0)
{
paddle[0].y = 480.0 - 64.0;
}
t3f_move_collision_object_xy(paddle[0].object, paddle[0].x, paddle[0].y);
/* move CPU paddle */
if(ball.vx > 0.0)
{
if(ball.x > paddle[1].x - 24)
{
paddle[1].y += paddle[1].dvy;
}
else
{
if(paddle[1].y < paddle[1].dy - 2.0)
{
paddle[1].y += 2.0;
if(paddle[1].y > 480.0 - 64.0)
{
paddle[1].y = 480.0 - 64.0;
}
}
else if(paddle[1].y > paddle[1].dy + 2.0)
{
paddle[1].y -= 2.0;
if(paddle[1].y < 0.0)
{
paddle[1].y = 0.0;
}
}
}
/* correct paddle position so it doesn't go past edge */
if(paddle[1].y > 480.0 - 64.0)
{
paddle[1].y = 480.0 - 64.0;
}
if(paddle[1].y < 0.0)
{
paddle[1].y = 0.0;
}
}
t3f_move_collision_object_xy(paddle[1].object, paddle[1].x, paddle[1].y);
/* move ball */
ball.x += ball.vx;
t3f_move_collision_object_xy(ball.object, ball.x, ball.y);
if(ball.vx < 0 && t3f_check_object_collision(paddle[0].object, ball.object))
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_HIT], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
ball.x = paddle[0].x + 16.0;
ball.vx = -ball.vx;
ball.vx += EXAMPLE_SPEED_INCREASE;
ball.vy -= (paddle[0].oy - paddle[0].y) / 4.0;
if(ball.vy < -3.0)
{
ball.vy = -3.0;
}
if(ball.vy > 3.0)
{
ball.vy = 3.0;
}
paddle[1].dy = paddle_ai_predict_y() - 32 + 8.0;
paddle[1].dvy = t3f_drand(&rng_state) * 6.0 - 3.0;
}
else if(ball.vx > 0 && t3f_check_object_collision(paddle[1].object, ball.object))
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_HIT], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
ball.x = paddle[1].x - 16.0 - 1.0;
ball.vx = -ball.vx;
ball.vx -= EXAMPLE_SPEED_INCREASE;
ball.vy -= (paddle[1].oy - paddle[1].y) / 4.0;
if(ball.vy < -3.0)
{
ball.vy = -3.0;
}
if(ball.vy > 3.0)
{
ball.vy = 3.0;
}
}
if(ball.x < -16.0)
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_SCORE], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
score[1]++;
if(score[1] >= 5)
{
t3f_stop_music();
paddle_state = EXAMPLE_STATE_GAME_OVER;
}
paddle_init_ball(1.0);
}
else if(ball.x > 640.0)
{
al_play_sample(paddle_sample[EXAMPLE_SAMPLE_SCORE], 0.5, 0.5, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
score[0]++;
if(score[0] >= 5)
{
t3f_stop_music();
paddle_state = EXAMPLE_STATE_GAME_OVER;
}
paddle_init_ball(-1.0);
}
ball.y += ball.vy;
if(ball.y < 0.0)
{
ball.y = 0.0;
ball.vy = -ball.vy;
}
else if(ball.y > 480.0 - 16.0)
{
ball.y = 480.0 - 16.0;
ball.vy = -ball.vy;
}
break;
}
case EXAMPLE_STATE_GAME_OVER:
{
/* return to menu if Escape pressed */
if(t3f_mouse_button[0] || t3f_key[ALLEGRO_KEY_ESCAPE])
{
paddle_game_exit();
}
break;
}
}
}
